Space in file name when using variables (bash)

Dethredic · 2009-05-08 23:33:27

So I have this:

BKP_WHERE=/home/phil/backup
BKP_FILE=`date +%e_%m_%y`_backup.tar.gz
echo $BKP_WHERE/$BKP_FILE

and that returns: /home/phil/backup/ 8_05_09_backup.tar.gz

Notice the space between those two variables. Is there any way to fix this?

HashBox · 2009-05-08 23:41:47

Searching for bash trim in google returned this page, http://stackoverflow.com/questions/3697 … h-variable which seems to be mostly useless apart from maybe this solution:

var=`hg st -R "$path" | sed -e 's/  *$//'`

So I suppose you could write:

BKP_FILE="`date +%e_%m_%y | sed -e 's/ *$//'`_backup.tar.gz"

Or something to that effect. Good luck!

Dethredic · 2009-05-09 00:18:59

HashBox wrote:

Searching for bash trim in google returned this page, http://stackoverflow.com/questions/3697 … h-variable which seems to be mostly useless apart from maybe this solution:
var=`hg st -R "$path" | sed -e 's/  *$//'`
So I suppose you could write:
BKP_FILE="`date +%e_%m_%y | sed -e 's/ *$//'`_backup.tar.gz"
Or something to that effect. Good luck!

The BKP_FILE variable works correctly, it is just when I combine it with the other there is a space between them.

mikesd · 2009-05-09 02:19:29

date's manpage describes the %e option as day of month space padded. That is where the space is coming from. It doesn't appear when the output is to a terminal though. Use %d instead:

BKP_WHERE=/home/phil/backup
BKP_FILE=`date +%d_%m_%y`_backup.tar.gz
echo $BKP_WHERE/$BKP_FILE

Edit: Ah it does appear in a terminal. I just hadn't noticed it.

Last edited by mikesd (2009-05-09 04:38:52)

jt512 · 2009-05-09 03:11:11

mikesd wrote:

date's manpage describes the %e option as day of month space padded. That is where the space is coming from. It doesn't appear when the output is to a terminal though. Use %d instead[.]

date +%-e_%m_%y should also work (ie, put a 'minus' after '%'.

mikesd · 2009-05-09 04:47:48

jt512 wrote:

date +%-e_%m_%y should also work (ie, put a 'minus' after '%'.

Ahh. Even better if the leading zeros are a problem.

Dethredic · 2009-05-09 10:24:41

jt512 wrote:

mikesd wrote:
date's manpage describes the %e option as day of month space padded. That is where the space is coming from. It doesn't appear when the output is to a terminal though. Use %d instead[.]
date +%-e_%m_%y should also work (ie, put a 'minus' after '%'.

worked great! Thanks!

Arch Linux

#1 2009-05-08 23:33:27

Space in file name when using variables (bash)

#2 2009-05-08 23:41:47

Re: Space in file name when using variables (bash)

#3 2009-05-09 00:18:59

Re: Space in file name when using variables (bash)

#4 2009-05-09 02:19:29

Re: Space in file name when using variables (bash)

#5 2009-05-09 03:11:11

Re: Space in file name when using variables (bash)

#6 2009-05-09 04:47:48

Re: Space in file name when using variables (bash)

#7 2009-05-09 10:24:41

Re: Space in file name when using variables (bash)

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